CN115032810B - High-efficiency body 3D display device and method - Google Patents
High-efficiency body 3D display device and method Download PDFInfo
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- 239000002245 particle Substances 0.000 claims description 34
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- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/50—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images the image being built up from image elements distributed over a 3D volume, e.g. voxels
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Abstract
The disclosure relates to the field of volumetric 3D display, and in particular, to a high-performance volumetric 3D display device, a control system of the high-performance volumetric 3D display device, and a high-performance volumetric 3D display method. Wherein, high-performance physical 3D display device includes: the device comprises a first laser array unit, a second laser array unit and an up-conversion light-emitting unit; the control system of the high-efficiency body 3D display device also comprises a body 3D target chromatography encoding unit and a laser array decoding control unit; through the device, the body 3D target display is realized, the scale limit of the body 3D display can be broken through, and the waste of energy consumption is greatly reduced.
Description
Technical Field
The disclosure relates to the field of volumetric 3D display, and in particular, to a high-performance volumetric 3D display device, a control system of the high-performance volumetric 3D display device, and a high-performance volumetric 3D display method.
Background
In recent years, AR technology has been developed for a wide variety of application fields. The body 3D display (also called true 3D display) takes a special position in various 3D display technologies by virtue of the convenience of no auxiliary equipment and the real impression of no ratio close to reality, and is widely paid attention to.
Current volumetric 3D display methods can be broadly divided into two general categories, 3D display based on fixed luminophores and 3D display based on transparent solution + up-conversion luminescent particles. The second type of method has no light path shielding, is convenient and flexible to configure, and is an ideal 3D display candidate scheme. The scheme utilizes a computer to control two or more infrared lasers to be converged on the same point in a transparent solution containing up-conversion luminescent particles, and the luminescence of the point is realized through the energy focusing of each beam and the up-conversion effect of the luminescent particles, so that an actual 'image point' is 'lighted' inside the solution. Several such image points are "lit" simultaneously, i.e. a near real 3D image is formed.
At present, in the solution of transparent solution and up-conversion luminescent particles, on one hand, only the fact that a single image point is lightened by two infrared laser intersection points is considered, and the position of the image point is changed by controlling the direction of laser, so that single-point scanning imaging is formed; on the other hand, the simultaneous intersection and multi-image point display of multiple infrared lasers are realized by utilizing DMD (digital micromirror device) technology. The former can only realize single-action lighting, and the real body target cannot be displayed; the latter is limited by the intrinsic performance and dimensions of the DMD, which can only display small-scale targets on the order of centimeters. While the laser is continuously emitted, whether an image point is lightened or not depends on whether the DMD reflects light to a required direction, so that a large amount of energy consumption is wasted.
Based on the above situation, the invention designs the high-efficiency energy 3D display device, the control system of the high-efficiency energy 3D display device and the high-efficiency energy 3D display method, which can break through the scale limitation of the 3D display and greatly reduce the waste of energy consumption.
Disclosure of Invention
The present disclosure aims to overcome the drawbacks of the prior art and provide a high-performance energy 3D display device, a high-performance energy 3D display device control system and a high-performance energy 3D display method.
In a first aspect, the present disclosure provides a high-performance volumetric 3D display device: comprising the following steps: the device comprises a first laser array unit, a second laser array unit and an up-conversion light-emitting unit; the first laser array unit and the second laser array unit are laser arrays formed by a plurality of sub lasers, and the first laser array unit and the second laser array unit are provided with first end lines which are arranged in a flush mode. The first laser array unit and the second laser array unit both meet the following conditions: the emergent light beams of each row of sub lasers parallel to the first end line are arranged on a plane, and the second end lines perpendicular to the first end line in the first laser array unit and the second laser array unit which are parallel to each other are arranged at a certain angle. The first laser array unit and the second laser array unit both meet the following conditions: the outgoing beams of each column of sub-lasers parallel to the second end line thereof are on a plane and parallel to each other. The outgoing beam plane of the first row of sub-lasers of the first laser array unit and the outgoing beam plane of the first row of sub-lasers of the second laser array unit are the same plane, and similarly, the outgoing beam plane of the second row of sub-lasers of the first laser array unit and the outgoing beam plane of the second row of sub-lasers of the second laser array unit are the same plane, and so on. When all the sub lasers of the first laser array unit emit laser, any row of sub lasers of the second laser array unit emit laser, the emitted light of the two laser array units form plane lattice point-shaped intersection points in space, and the up-conversion light-emitting unit is arranged in the space formed by the light emitting surfaces of the first laser array unit and the second laser array unit.
In some embodiments, the second end line in the first laser array unit and the second laser array unit is disposed at any angle between 0 and 90 degrees.
In some embodiments, the second end line in the first laser array unit and the second laser array unit is disposed at 90 degrees.
In some embodiments, the up-conversion luminescent unit includes a transparent solution in which up-conversion luminescent particles are dissolved, and a transparent container containing the transparent solution.
In some embodiments, the up-conversion luminescent particles consist of a specific chemical composition, preferably an inorganic matrix doped with rare earth ions. The particles have the following characteristics: if the particles are positioned at the junction of two infrared lasers invisible to naked eyes, the particles can absorb the energy of the two infrared lasers, realize energy level transition, radiate energy outwards at the visible light frequency, and therefore cause the display effect that 'isolated points' in space are 'lightened'.
In some embodiments, the first laser array unit and the second laser array unit emit laser light as infrared laser light with wavelength between 800nm and 1600 nm.
In a second aspect, the present disclosure further provides a control system for a high-efficiency volumetric 3D display device, including the high-efficiency volumetric 3D display device according to the first aspect, a volumetric 3D target tomocoding unit, and a laser array decoding control unit; the body 3D target chromatography encoding unit is electrically connected with the laser array decoding control unit, and the laser array decoding control unit is electrically connected with the first laser array unit and the second laser array unit.
In a third aspect, the present disclosure further provides a high-efficiency-body 3D display method, which is applied to the high-efficiency-body 3D display device according to the first aspect and the control system of the high-efficiency-body 3D display device according to the second aspect, where the method includes the body 3D target tomocoding unit outputting tomocoded data of a body 3D display target to the laser array decoding control unit; the laser array decoding control unit controls corresponding sub lasers in the first laser array unit and the second laser array unit to be started according to the chromatographic coding data so as to display each layer of data one by one; the laser emitted by the first laser array unit and the second laser array unit are converged on up-conversion luminescent particles in the up-conversion luminescent unit; the up-conversion luminous particles in the up-conversion luminous unit emit visible light through laser intersection.
In some embodiments, the tomographic coded data is coded data of each layer of the 3D display target, and the point cloud data is set in a layered manner, where the number of layers is less than or equal to the number of rows or columns of the array unit.
In some embodiments, controlling the first laser array unit and the second laser array unit to display each layer of data one by one according to the chromatographic coding data specifically includes analyzing the surface coordinates of the 3D display target of the first layer of chromatographic coding data midbody, and controlling the corresponding sub-lasers in the first laser array unit to emit laser light; at the same time, controlling a first row of sub lasers in the second laser array unit, which are parallel to the first laser array unit, to emit laser; the emergent light beams of the two laser arrays are intersected in space to form scattered luminous points on the same plane, and the scattered luminous points correspond to the first layer outline of the 3D target. Controlling the first laser array unit and the second laser array unit to stop emitting laser; the surface coordinates of the 3D display target of the middle body of the second layer of layer coding data are analyzed, and the corresponding sub lasers in the first laser array unit are controlled to emit laser; at the same time, controlling a second row of sub lasers in the second laser array unit, which are parallel to the first laser array unit, to emit laser; the outgoing beams of the two laser arrays are also intersected to form scattered luminous points on the same plane, and the scattered luminous points correspond to the second layer outline of the 3D target. Controlling the first laser array unit and the second laser array unit to stop emitting laser; sequentially analyzing the layer N coding data, and controlling the first laser array unit and the second laser array unit to emit laser so as to complete the layer N contour display of the 3D object; repeating the steps after the whole display of the 3D object is completed so as to continuously display the 3D object. The repetition frequency should meet the requirement of 'persistence of vision' of human eyes, namely the time for completing the integral display of the 3D object of the primary body cannot be longer than 1/30 second.
In some embodiments, the up-conversion luminescent particles in the up-conversion luminescent unit emitting visible light according to laser light intersection comprises: and up-conversion particles at the intersection of the emergent laser of the corresponding sub-laser in the first laser array unit and the emergent laser of the sub-laser of the N line parallel to the first laser array unit in the second laser array unit emit visible light to form a 3D target N layer profile display.
The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects: transparent solution and up-conversion luminescent particle system are adopted. The method is different from the traditional method in that the related body 3D display method uses a two-dimensional array formed by lasers as a light source, and a decoding control unit which is specially designed is used for independently controlling the light emitting condition of each laser in the two-dimensional array of the lasers, so that a plurality of image points in a transparent solution are lightened simultaneously, and a 3D image is formed. Compared with the traditional DMD-based 3D display method, the method can thoroughly break through the scale limitation of the display object, and the arrangement and the scale of the laser array are set and arranged according to the actual size of the display object; on the other hand, for the image point (not on the object to be displayed) which does not need to be lightened in space, the corresponding laser does not need to emit light, so that the waste of energy consumption can be greatly reduced, and the practical and productive processes of the invention are accelerated.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.
FIGS. 1 and 2 are schematic diagrams of a laser array of a high performance volumetric 3D display device;
FIG. 3 is a schematic diagram of a high performance volumetric 3D display device;
Detailed Description
The disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those of ordinary skill in the art to better understand and thus practice the present disclosure, and are not meant to imply any limitation on the scope of the present disclosure.
As used herein, the term "comprising" and variants thereof are to be interpreted as meaning "including but not limited to" open-ended terms. The term "based on" is to be interpreted as "based at least in part on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment. The term "another embodiment" is to be interpreted as "at least one other embodiment".
As shown in fig. 1, the high-efficiency-body 3D display device provided by the present disclosure may include a first laser array unit 1, a second laser array unit 2, and an up-conversion light emitting unit 3; the first laser array unit 1 and the second laser array unit 2 have the same structure and are all laser arrays formed by a plurality of sub lasers, the first laser array unit 1 and the second laser array unit 2 have first end lines 1-1 and 2-1 which are arranged in a flush manner, second end lines 1-2 and 2-2 which are perpendicular to the first end lines 1-1 and 2-1 in the first laser array unit 1 and the second laser array unit 2 are positioned in the same plane and are arranged at a certain angle, emergent light paths of the first laser array unit 1 and the second laser array unit 2 have spatial intersection, as shown in fig. 3, and the up-conversion light emitting unit 3 is arranged in a space formed by emergent light surfaces of the first laser array unit 1 and the second laser array unit 2.
In the embodiment of the disclosure, the second end lines 1-2 and 2-2 in the first laser array unit 1 and the second laser array unit 2 are arranged at any angle of 0 to 90 degrees; further preferably a 90 degree setting.
In the embodiment of the present disclosure, the up-conversion luminescence unit 3 includes a transparent solution 3-1 in which up-conversion luminescence particles are dissolved, and a transparent container 3-2 in which the transparent solution is contained.
In an embodiment of the disclosure, the up-conversion luminescent particles consist of an inorganic matrix doped with rare earth ions. Preferably, the rare earth ions doped in the up-conversion luminescent particles comprise any one or more combinations of y3+, gd3+, nd3+, yb3+, er3+, tm3+, ho3+; wherein the nonlinear luminescence principle of the up-conversion luminescent particles is utilized. A beam of laser light impinges on the particles, not to say does not emit light, but rather emits light too little to be visible. The two laser beams are simultaneously emitted to the particles, the input energy is doubled, the nonlinear effect of the particles causes the output to be doubled, but quadruple to be eight times and even higher … …, so that the visual effect that one beam does not lighten and the two beams lighten is realized by properly designing the particles and the power of the sub lasers.
In some embodiments, the concentration of the up-conversion luminescent particles ranges from 10-2 to 10-3 mol/L.
In the embodiment of the disclosure, the laser emitted by the first laser array unit 1 and the second laser array unit 2 is infrared laser invisible to naked eyes. Preferably, the wavelength of the emitted laser light of the first laser array unit 1 and the emitted laser light of the second laser array unit 2 are 980nm or 808nm, so that the luminescence color of the up-conversion luminescent particles under the laser light can be any one or more of blue, green and red.
In the embodiment of the disclosure, as shown in fig. 2, the columns of the first laser array unit 1 and the second laser array unit 2 are the same, or as shown in fig. 1, it is further preferable that the number of rows and the number of columns are the same, and the laser arrangement follows a definite rule. The sub lasers of the first laser array unit 1 and the second laser array unit 2 are arranged according to square lattice points, and the row spacing and the column spacing are the same. Wherein the outgoing beams of each column of sub-lasers are in one plane and parallel to each other. The emergent beam plane of the first row of sub lasers of the first laser array unit 1 and the emergent beam plane of the first row of sub lasers of the second laser array unit 2 are the same plane, and emergent beams of the two rows of sub lasers are intersected on the plane to form matrix lattice point-shaped luminous points. Similarly, the plane of the outgoing beam of the second row of the sub-lasers of the first laser array unit 1 and the plane of the outgoing beam of the second row of the lasers of the second laser array unit 2 are the same plane, and similarly, matrix lattice point-shaped luminous points are formed. The emergent beams of the sub lasers of the first laser array unit 1 and the second laser array unit 2 are distributed in a three-dimensional grid at the intersection point in space. Because the luminous particles on each intersection point adopt an up-conversion luminous mechanism, the intersection point can be lightened only when two sub lasers with light beams converged on the intersection point emit light at the same time and two lasers are converged on the particles at the same time, otherwise, the intersection point cannot emit light. Therefore, whether the laser emits light or not can be controlled, so that whether the space is lighted or not can be controlled, and the 3D display can be realized.
Based on the same inventive concept, the present disclosure further provides a high-efficiency energy 3D display device control system, including a high-efficiency energy 3D display device, a body 3D target chromatography encoding unit, and a laser array decoding control unit according to the first aspect; the body 3D target chromatography encoding unit is electrically connected with the laser array decoding control unit, and the laser array decoding control unit is electrically connected with the first laser array unit 1 and the second laser array unit 2.
In the embodiment of the disclosure, the volume 3D target tomocoding unit takes a volume 3D format file of a display target as input, performs shape tomograph on the display target, and forms a control code of a laser two-dimensional array. In the tomographic process, the unit establishes two different coordinate systems (target coordinate system, display coordinate system) and forms a correspondence between the coordinate systems. As shown in fig. 1, the body 3D object tomograph unit first establishes an object coordinate system for a display object, fixes a three-dimensional direction as a Z axis of the object coordinate system, and simultaneously, as a spatial orientation of the object tomograph. The unit then builds a virtual plane perpendicular to the Z-axis of the target coordinate system, called the tomographic plane. The unit establishes a display coordinate system by utilizing three-dimensional grid points formed by the intersection of light beams emitted by the two laser two-dimensional arrays. The Z axis of the display coordinate system is consistent with the Z axis direction of the target coordinate system, and the X-Y plane is parallel to the first laser array unit 1 or the second laser array unit 2. The unit of each coordinate axis is set as the line spacing of the sub lasers in the first laser array unit 1 or the second laser array unit 2. A display plane corresponding to the tomographic plane and parallel to the X-Y plane of the display coordinate system is established in the display coordinate system.
In the embodiment of the disclosure, in the body 3D target tomocoding unit, the tomograph may move in parallel along the Z-axis direction of the target coordinate system, so as to make first contact with the display target as the initial position until the tomograph is out of contact with the display target. In contrast, the display plane may be moved in parallel along the Z-axis direction of the display coordinate system, with the position of the first row including the second laser array unit 2 as its initial position. And obtaining the Z-direction scale of the display target from the target coordinate system, dividing the Z-direction scale by the number of lines of the second laser array unit 2, and obtaining the moving step length of the chromatographic plane. Correspondingly, the moving step of the display plane is the line pitch of the second laser array unit 2. And acquiring the X-direction and Y-direction scales of the display target from the target coordinate system, dividing the larger scale by the number of lines of the first laser array unit 1, and obtaining the corresponding proportionality coefficient between the target coordinate system and the display coordinate system.
In the embodiment of the disclosure, in the body 3D target tomocoding unit, when tomosynthesis starts, the tomosynthesis plane and the display plane are simultaneously placed at the initial positions. The tomographic plane is moved one step along the Z-axis in the target coordinate system, and in synchronization with this, the display plane is also moved one step (corresponding to a different row of the second laser array unit 2) in parallel along the Z-axis in the display coordinate system. The chromatographic plane intersects with the outer contour of the display target to form intersection lines, the intersection lines are discretized to be degenerated into a plurality of points which are not connected with each other, and the points are called target feature points. The target feature points are distributed on the outer contour of the display target and all have three-dimensional coordinates belonging to the target coordinate system. The X and Y coordinates of each target feature point are divided by the corresponding scaling factor and rounded off (rounding errors here, which can be ignored if the laser array pitch is sufficiently small) to obtain the corresponding coordinates of the point in the display coordinate system. The coordinates are integers, called the display coordinates of the target feature points, and correspond to the intersection point of the light beams emitted by the two-dimensional array of lasers.
In the embodiment of the disclosure, the volumetric 3D target tomocoding unit acquires, at each of the foregoing tomosynthesis steps, a display plane Z coordinate (corresponding to the number of rows of the second laser array unit 2), and display coordinates of all the target feature points formed at the step, as tomosynthesis data of the volumetric 3D target, and records the display plane Z coordinate.
In the embodiment of the disclosure, the laser array decoding control unit takes the tomographic encoding data of the 3D body target as input, and controls whether each laser in the two-dimensional arrays emits or not to complete the display of the 3D body target. The specific method is that the chromatographic coding data of the 1 st chromatographic step is read in, according to the X-Y coordinates of all target feature points generated by the chromatographic step in a display coordinate system, the corresponding lasers on the first laser array unit 1 are turned on to emit light beams, and sub lasers on the X-Y coordinates of the target feature points on the first laser array unit 1 are not kept in a turned-off state. At the same time, all sub-lasers in row 1 on the second laser array unit 2 are turned on. The result of such two sets of beams meeting is just a profile showing layer 1 after target tomography. After a certain period of time, the two laser arrays are turned off. And then reading in the chromatographic coding data of the 2 nd chromatographic step, and turning on the corresponding lasers on the first laser array unit 1 to emit light beams according to the X-Y coordinates of all the target characteristic points generated by the chromatographic step in the display coordinate system, wherein the lasers on the first laser array unit 1, which are not located on the X-Y coordinates of the target characteristic points, are kept in a turned-off state. At the same time, all sub-lasers in row 2 on the second laser array unit 2 are turned on. The outline of layer 2 after target chromatography is shown. And by analogy, after all target feature points generated by the last chromatographic step are displayed, returning to the data of the 1 st chromatographic step, and restarting the circulation.
In the embodiment of the disclosure, in order to make full use of the physiological characteristics of human eyes, the look and feel of the display target is more stable, smoother and natural, and the circulation speed needs to be kept at a higher level. The typical value here is 100Hz, i.e. 100 cycles per second.
Based on the same inventive concept, the present disclosure further provides a high-efficiency-body 3D display method, which is applied to the high-efficiency-body 3D display device according to the first aspect and the control system of the high-efficiency-body 3D display device according to the second aspect, wherein the method includes the body 3D target tomocoding unit outputting the tomocoded data of the body 3D display target to the laser array decoding control unit; the laser array decoding control unit controls corresponding sub lasers in the first laser array unit 1 and the second laser array unit 2 to be started according to the chromatographic coding data so as to display each layer of data one by one; the laser emitted by the first laser array unit and the second laser array unit are converged on up-conversion luminescent particles in the up-conversion luminescent unit; and the up-conversion luminescent particles in the up-conversion luminescent unit emit visible light according to laser intersection.
In the embodiment of the disclosure, the chromatographic coded data is coded data of each layer of the 3D display target, and the point cloud data is set in a layered manner, where the number of layers is less than or equal to the number of rows or columns of the array unit.
In the embodiment of the disclosure, controlling the first laser array unit 1 and the second laser array unit 2 to display each layer of data one by one according to the chromatographic coding data specifically includes analyzing the surface coordinates of the 3D display target of the middle body of the first layer of chromatographic coding data, and controlling the corresponding sub lasers in the first laser array unit 1 to emit laser light; controlling a first row of sub lasers in the second laser array unit 2, which are parallel to the first laser array unit 1, to emit laser; controlling the first laser array unit 1 and the second laser array unit 2 to be closed; the corresponding sub lasers in the first laser array unit 1 are controlled to emit laser by analyzing the surface coordinates of the 3D display target of the second layer of layer coding data midbody; controlling a second row of sub lasers which are parallel to the first laser array unit 1 in the second laser array unit 2 to emit laser; controlling the first laser array unit 1 and the second laser array unit 2 to be closed; sequentially analyzing the layer N coding data, and controlling the first laser array unit 1 and the second laser array unit 2 to emit laser so as to complete the layer N display of the 3D object; repeating the steps after the whole display of the 3D object is completed so as to continuously display the 3D object.
In an embodiment of the disclosure, the up-conversion luminescent particles in the up-conversion luminescent unit emit visible light according to a laser intersection, including: and up-conversion particles at the intersection of the emergent laser of the corresponding sub-laser in the first laser array unit and the emergent laser of the sub-laser of the N line parallel to the first laser array unit in the second laser array unit emit visible light to form a 3D target N layer for display.
It is understood that the term "plurality" in this disclosure means two or more, and other adjectives are similar thereto. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship. The singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It is further understood that the terms "first," "second," and the like are used to describe various information, but such information should not be limited to these terms. These terms are only used to distinguish one type of information from another and do not denote a particular order or importance. Indeed, the expressions "first", "second", etc. may be used entirely interchangeably. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure.
It will be further understood that the terms "center," "longitudinal," "transverse," "front," "rear," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship based on that shown in the drawings, merely for convenience in describing the present embodiments and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operate in a particular orientation.
It will be further understood that "connected" includes both direct connection where no other member is present and indirect connection where other element is present, unless specifically stated otherwise.
It will be further understood that although operations are depicted in the drawings in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. In certain circumstances, multitasking and parallel processing may be advantageous.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any adaptations, uses, or adaptations of the disclosure following the general principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (7)
1. A high-efficiency 3D display method is characterized in that,
A high performance volumetric 3D display device is employed, comprising:
The device comprises a first laser array unit, a second laser array unit and an up-conversion light-emitting unit; the first laser array unit and the second laser array unit are grid-shaped laser arrays formed by a plurality of sub lasers, and the sub lasers of the first laser array unit and the second laser array unit are identical in size;
The first laser array unit and the second laser array are respectively provided with a first end line parallel to the row of the grid-shaped laser array and a second end line parallel to the column of the grid-shaped laser array;
The first end line of the first laser array unit and the first end line of the second laser array unit are arranged in parallel, and the second end line of the first laser array unit and the second end line of the second laser array unit are arranged in the same plane and form a certain angle;
The emergent laser of the sub lasers of the first laser array unit and the emergent laser of the sub lasers of each row of the second laser array unit respectively form plane lattice point-shaped intersection points in space, so that a plurality of image points in the transparent solution are lightened simultaneously, and a 3D image is formed;
the up-conversion light-emitting unit is arranged in a space formed by the light emitting surfaces of the first laser array unit and the second laser array unit;
And employing a high performance volumetric 3D display control system comprising: the high-efficiency body 3D display device, the body 3D target chromatography encoding unit and the laser array decoding control unit; the body 3D target chromatography encoding unit is electrically connected with the laser array decoding control unit, and the laser array decoding control unit is electrically connected with the first laser array unit and the second laser array unit respectively;
The high-efficiency body 3D display method comprises a body 3D display control step:
s1, outputting chromatographic coding data of a 3D display target to the laser array decoding control unit by the body 3D target chromatographic coding unit;
S2, the laser array decoding control unit controls corresponding sub lasers in the first laser array unit and the second laser array unit to be started according to the chromatographic coding data so as to display data of each layer one by one;
S3, laser emitted by the first laser array unit and the second laser array unit are converged on up-conversion luminescent particles in the up-conversion luminescent unit;
S4, the up-conversion luminous particles in the up-conversion luminous unit emit visible light through laser intersection.
2. The method of claim 1, wherein the columns of the grid-like laser arrays of the first and second laser array units are the same.
3. The high-efficiency fluidic 3D display method of claim 1, wherein the up-conversion luminescence unit comprises a transparent solution in which up-conversion luminescence particles are dissolved and a transparent container in which the transparent solution is contained.
4. A method of high-efficiency volumetric 3D display according to claim 3, wherein the up-conversion luminescent particles radiate energy outwardly at visible frequencies under the intersection of two different incoming infrared lasers.
5. The method of claim 1, wherein the first laser array unit and the second laser array unit emit infrared laser with a wavelength of 800nm-1600 nm.
6. The method according to claim 1, wherein in the step S1, the tomographic coded data is coded data of each layer of the 3D display target, and the point cloud data is set in layers, and the number of layers is less than or equal to the number of rows of the array unit.
7. The method of claim 6, wherein the step S2 of controlling the first laser array unit and the second laser array unit to display each layer of data one by one according to the tomographic encoding data comprises the steps of:
S21, controlling corresponding sub lasers in the first laser array unit to emit laser by analyzing the surface coordinates of the 3D display target of the first layer of analysis coded data midbody;
s22, simultaneously with the step S21, controlling a first row of sub lasers in the second laser array unit, which are parallel to the first laser array unit, to emit laser;
s23, controlling the first laser array unit and the second laser array unit to stop emitting laser;
S24, controlling corresponding sub lasers in the first laser array unit to emit laser by analyzing the surface coordinates of the 3D display target of the second layer of layer-by-layer encoded data midbody;
S25, simultaneously with the step S24, controlling a second row of sub lasers in the second laser array unit, which are parallel to the first laser array unit, to emit laser;
S26, controlling the first laser array unit and the second laser array unit to stop emitting laser;
s27, sequentially analyzing the Nth layer of layer coding data, and controlling the Nth row of sub lasers of the first laser array unit and the second laser array unit to emit laser so as to finish the Nth layer display of the 3D object;
And S28, repeating the steps S21-S27 after the whole display of the body 3D target is finished so as to continuously display the body 3D target, wherein the repeated frequency is required to meet the requirement of 'persistence of vision' of human eyes, namely the time for finishing the whole display of the body 3D target (steps S21-S27) is not longer than 1/30 second.
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| CN208570069U (en) * | 2018-08-01 | 2019-03-01 | 合肥惠科金扬科技有限公司 | A kind of display device |
| CN113504660A (en) * | 2021-07-07 | 2021-10-15 | 安徽省东超科技有限公司 | Three-dimensional display device and control method thereof |
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| CN1971340A (en) * | 2005-11-21 | 2007-05-30 | 耿征 | Real 3D high definition display method and device |
| US7899093B1 (en) * | 2007-05-24 | 2011-03-01 | University Of Central Florida Research Foundation, Inc. | Combination of up-converting materials with semiconductor light sources |
| CN101079212A (en) * | 2007-06-25 | 2007-11-28 | 大连海事大学 | Display panel using semiconductor infrared diode laser array as excitation source |
| US8301027B2 (en) * | 2008-05-02 | 2012-10-30 | Massachusetts Institute Of Technology | Agile-beam laser array transmitter |
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| US20170214909A1 (en) * | 2017-01-27 | 2017-07-27 | Desaraju Sai Satya Subrahmanyam | Method and Apparatus for Displaying a Still or Moving Scene in Three Dimensions |
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